1357804540 has 48 divisors (see below), whose sum is σ = 3055816512. Its totient is φ = 505460736.

The previous prime is 1357804537. The next prime is 1357804549. The reversal of 1357804540 is 454087531.

It is a super-2 number, since 2×1357804540² = 3687266337689223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 1357804540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357804549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22869 + ... + 56908.

It is an arithmetic number, because the mean of its divisors is an integer number (63662844).

Almost surely, 2^1357804540 is an apocalyptic number.

1357804540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1357804540 is an abundant number, since it is smaller than the sum of its proper divisors (1698011972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1357804540 is a wasteful number, since it uses less digits than its factorization.

1357804540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79846 (or 79844 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 1357804540 is about 36848.3994224987. The cubic root of 1357804540 is about 1107.3351489758.

The spelling of 1357804540 in words is "one billion, three hundred fifty-seven million, eight hundred four thousand, five hundred forty".